SupplementDuel

BCAA

Amino Acid

The classic intra-workout amino, but largely redundant if you eat enough protein. EAAs offer a more complete profile for the same price.

intra-workoutmuscleleucineanti-catabolic
Typical dose
5–10 g per serving
Evidence
Limited (small studies)
Onset time
Acute: 15–30 min
Half-life
~1 hour
Forms
Powder, Capsule
Source
microbial
Best taken with
water during training
Best time of day
pre-workout
Bioavailability
5/5
Safety rating
5/5
Price per serving
$0.50
Vegan / GF / 3rd-party
✓ / ✓ / ✓
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Vetted brands, third-party testing, ships worldwide.

Common uses

  • • Intra-workout fuel
  • • Fasted training
  • • Anti-catabolic

Effect profile

Strength
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Muscle
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Energy
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Focus
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Mood
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Sleep
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Immunity
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Recovery
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Longevity
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Common side effects

  • • Generally none

Avoid if

  • • MSUD (rare genetic disorder)

Drug interactions

  • • Diabetes meds (mild)

Related amino acid supplements

BCAA vs Essential Amino Acids (EAA)BCAA vs L-GlutamineBCAA vs L-ArginineBCAA vs L-Citrulline

Medical disclaimer

SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements.